Box support bracket



FIG. 1 is a first perspective of a box support bracket in accordancewith the present design;

FIG. 2 is a front view of the box support bracket shown in FIG. 1;

FIG. 3 is a rear view of the box support bracket shown in FIG. 1;

FIG. 4 is a left side view of the box support bracket shown in FIG. 1,which is the same as the right side view; and,

FIG. 5 is a plan view of the box support bracket shown in FIG. 1, whichis the same as the bottom view.

CLAIM The ornamental design for a box support bracket, as shown.